diff -r 94a84abb873b -r 31272cef28e2 src/hotspot/cpu/x86/x86_64.ad
--- a/src/hotspot/cpu/x86/x86_64.ad	Tue Nov 26 16:09:21 2019 +0300
+++ b/src/hotspot/cpu/x86/x86_64.ad	Tue Nov 26 16:09:23 2019 +0300
@@ -267,6 +267,9 @@
 // Singleton class for RSI pointer register
 reg_class ptr_rsi_reg(RSI, RSI_H);
 
+// Singleton class for RBP pointer register
+reg_class ptr_rbp_reg(RBP, RBP_H);
+
 // Singleton class for RDI pointer register
 reg_class ptr_rdi_reg(RDI, RDI_H);
 
@@ -3530,6 +3533,16 @@
   interface(REG_INTER);
 %}
 
+operand rbp_RegP()
+%{
+  constraint(ALLOC_IN_RC(ptr_rbp_reg));
+  match(RegP);
+  match(rRegP);
+
+  format %{ %}
+  interface(REG_INTER);
+%}
+
 // Used in rep stosq
 operand rdi_RegP()
 %{